506 lines
19 KiB
PHP
506 lines
19 KiB
PHP
<?php
|
|
/**
|
|
* @link http://www.yiiframework.com/
|
|
* @copyright Copyright (c) 2008 Yii Software LLC
|
|
* @license http://www.yiiframework.com/license/
|
|
*/
|
|
|
|
namespace yii\web;
|
|
|
|
use Yii;
|
|
use yii\base\ErrorException;
|
|
use yii\base\Exception;
|
|
use yii\base\UserException;
|
|
use yii\helpers\VarDumper;
|
|
|
|
/**
|
|
* ErrorHandler handles uncaught PHP errors and exceptions.
|
|
*
|
|
* ErrorHandler displays these errors using appropriate views based on the
|
|
* nature of the errors and the mode the application runs at.
|
|
*
|
|
* ErrorHandler is configured as an application component in [[\yii\base\Application]] by default.
|
|
* You can access that instance via `Yii::$app->errorHandler`.
|
|
*
|
|
* For more details and usage information on ErrorHandler, see the [guide article on handling errors](guide:runtime-handling-errors).
|
|
*
|
|
* @author Qiang Xue <qiang.xue@gmail.com>
|
|
* @author Timur Ruziev <resurtm@gmail.com>
|
|
* @since 2.0
|
|
*/
|
|
class ErrorHandler extends \yii\base\ErrorHandler
|
|
{
|
|
/**
|
|
* @var int maximum number of source code lines to be displayed. Defaults to 19.
|
|
*/
|
|
public $maxSourceLines = 19;
|
|
/**
|
|
* @var int maximum number of trace source code lines to be displayed. Defaults to 13.
|
|
*/
|
|
public $maxTraceSourceLines = 13;
|
|
/**
|
|
* @var string the route (e.g. `site/error`) to the controller action that will be used
|
|
* to display external errors. Inside the action, it can retrieve the error information
|
|
* using `Yii::$app->errorHandler->exception`. This property defaults to null, meaning ErrorHandler
|
|
* will handle the error display.
|
|
*/
|
|
public $errorAction;
|
|
/**
|
|
* @var string the path of the view file for rendering exceptions without call stack information.
|
|
*/
|
|
public $errorView = '@yii/views/errorHandler/error.php';
|
|
/**
|
|
* @var string the path of the view file for rendering exceptions.
|
|
*/
|
|
public $exceptionView = '@yii/views/errorHandler/exception.php';
|
|
/**
|
|
* @var string the path of the view file for rendering exceptions and errors call stack element.
|
|
*/
|
|
public $callStackItemView = '@yii/views/errorHandler/callStackItem.php';
|
|
/**
|
|
* @var string the path of the view file for rendering previous exceptions.
|
|
*/
|
|
public $previousExceptionView = '@yii/views/errorHandler/previousException.php';
|
|
/**
|
|
* @var array list of the PHP predefined variables that should be displayed on the error page.
|
|
* Note that a variable must be accessible via `$GLOBALS`. Otherwise it won't be displayed.
|
|
* Defaults to `['_GET', '_POST', '_FILES', '_COOKIE', '_SESSION']`.
|
|
* @see renderRequest()
|
|
* @since 2.0.7
|
|
*/
|
|
public $displayVars = ['_GET', '_POST', '_FILES', '_COOKIE', '_SESSION'];
|
|
/**
|
|
* @var string trace line with placeholders to be be substituted.
|
|
* The placeholders are {file}, {line} and {text} and the string should be as follows.
|
|
*
|
|
* `File: {file} - Line: {line} - Text: {text}`
|
|
*
|
|
* @example <a href="ide://open?file={file}&line={line}">{html}</a>
|
|
* @see https://github.com/yiisoft/yii2-debug#open-files-in-ide
|
|
* @since 2.0.14
|
|
*/
|
|
public $traceLine = '{html}';
|
|
|
|
|
|
/**
|
|
* Renders the exception.
|
|
* @param \Exception|\Error $exception the exception to be rendered.
|
|
*/
|
|
protected function renderException($exception)
|
|
{
|
|
if (Yii::$app->has('response')) {
|
|
$response = Yii::$app->getResponse();
|
|
// reset parameters of response to avoid interference with partially created response data
|
|
// in case the error occurred while sending the response.
|
|
$response->isSent = false;
|
|
$response->stream = null;
|
|
$response->data = null;
|
|
$response->content = null;
|
|
} else {
|
|
$response = new Response();
|
|
}
|
|
|
|
$response->setStatusCodeByException($exception);
|
|
|
|
$useErrorView = $response->format === Response::FORMAT_HTML && (!YII_DEBUG || $exception instanceof UserException);
|
|
|
|
if ($useErrorView && $this->errorAction !== null) {
|
|
Yii::$app->view->clear();
|
|
$result = Yii::$app->runAction($this->errorAction);
|
|
if ($result instanceof Response) {
|
|
$response = $result;
|
|
} else {
|
|
$response->data = $result;
|
|
}
|
|
} elseif ($response->format === Response::FORMAT_HTML) {
|
|
if ($this->shouldRenderSimpleHtml()) {
|
|
// AJAX request
|
|
$response->data = '<pre>' . $this->htmlEncode(static::convertExceptionToString($exception)) . '</pre>';
|
|
} else {
|
|
// if there is an error during error rendering it's useful to
|
|
// display PHP error in debug mode instead of a blank screen
|
|
if (YII_DEBUG) {
|
|
ini_set('display_errors', 1);
|
|
}
|
|
$file = $useErrorView ? $this->errorView : $this->exceptionView;
|
|
$response->data = $this->renderFile($file, [
|
|
'exception' => $exception,
|
|
]);
|
|
}
|
|
} elseif ($response->format === Response::FORMAT_RAW) {
|
|
$response->data = static::convertExceptionToString($exception);
|
|
} else {
|
|
$response->data = $this->convertExceptionToArray($exception);
|
|
}
|
|
|
|
$response->send();
|
|
}
|
|
|
|
/**
|
|
* Converts an exception into an array.
|
|
* @param \Exception|\Error $exception the exception being converted
|
|
* @return array the array representation of the exception.
|
|
*/
|
|
protected function convertExceptionToArray($exception)
|
|
{
|
|
if (!YII_DEBUG && !$exception instanceof UserException && !$exception instanceof HttpException) {
|
|
$exception = new HttpException(500, Yii::t('yii', 'An internal server error occurred.'));
|
|
}
|
|
|
|
$array = [
|
|
'name' => ($exception instanceof Exception || $exception instanceof ErrorException) ? $exception->getName() : 'Exception',
|
|
'message' => $exception->getMessage(),
|
|
'code' => $exception->getCode(),
|
|
];
|
|
if ($exception instanceof HttpException) {
|
|
$array['status'] = $exception->statusCode;
|
|
}
|
|
if (YII_DEBUG) {
|
|
$array['type'] = get_class($exception);
|
|
if (!$exception instanceof UserException) {
|
|
$array['file'] = $exception->getFile();
|
|
$array['line'] = $exception->getLine();
|
|
$array['stack-trace'] = explode("\n", $exception->getTraceAsString());
|
|
if ($exception instanceof \yii\db\Exception) {
|
|
$array['error-info'] = $exception->errorInfo;
|
|
}
|
|
}
|
|
}
|
|
if (($prev = $exception->getPrevious()) !== null) {
|
|
$array['previous'] = $this->convertExceptionToArray($prev);
|
|
}
|
|
|
|
return $array;
|
|
}
|
|
|
|
/**
|
|
* Converts special characters to HTML entities.
|
|
* @param string $text to encode.
|
|
* @return string encoded original text.
|
|
*/
|
|
public function htmlEncode($text)
|
|
{
|
|
return htmlspecialchars($text, ENT_QUOTES, 'UTF-8');
|
|
}
|
|
|
|
/**
|
|
* Adds informational links to the given PHP type/class.
|
|
* @param string $code type/class name to be linkified.
|
|
* @return string linkified with HTML type/class name.
|
|
*/
|
|
public function addTypeLinks($code)
|
|
{
|
|
if (preg_match('/(.*?)::([^(]+)/', $code, $matches)) {
|
|
$class = $matches[1];
|
|
$method = $matches[2];
|
|
$text = $this->htmlEncode($class) . '::' . $this->htmlEncode($method);
|
|
} else {
|
|
$class = $code;
|
|
$method = null;
|
|
$text = $this->htmlEncode($class);
|
|
}
|
|
|
|
$url = null;
|
|
|
|
$shouldGenerateLink = true;
|
|
if ($method !== null && substr_compare($method, '{closure}', -9) !== 0) {
|
|
$reflection = new \ReflectionClass($class);
|
|
if ($reflection->hasMethod($method)) {
|
|
$reflectionMethod = $reflection->getMethod($method);
|
|
$shouldGenerateLink = $reflectionMethod->isPublic() || $reflectionMethod->isProtected();
|
|
} else {
|
|
$shouldGenerateLink = false;
|
|
}
|
|
}
|
|
|
|
if ($shouldGenerateLink) {
|
|
$url = $this->getTypeUrl($class, $method);
|
|
}
|
|
|
|
if ($url === null) {
|
|
return $text;
|
|
}
|
|
|
|
return '<a href="' . $url . '" target="_blank">' . $text . '</a>';
|
|
}
|
|
|
|
/**
|
|
* Returns the informational link URL for a given PHP type/class.
|
|
* @param string $class the type or class name.
|
|
* @param string|null $method the method name.
|
|
* @return string|null the informational link URL.
|
|
* @see addTypeLinks()
|
|
*/
|
|
protected function getTypeUrl($class, $method)
|
|
{
|
|
if (strncmp($class, 'yii\\', 4) !== 0) {
|
|
return null;
|
|
}
|
|
|
|
$page = $this->htmlEncode(strtolower(str_replace('\\', '-', $class)));
|
|
$url = "http://www.yiiframework.com/doc-2.0/$page.html";
|
|
if ($method) {
|
|
$url .= "#$method()-detail";
|
|
}
|
|
|
|
return $url;
|
|
}
|
|
|
|
/**
|
|
* Renders a view file as a PHP script.
|
|
* @param string $_file_ the view file.
|
|
* @param array $_params_ the parameters (name-value pairs) that will be extracted and made available in the view file.
|
|
* @return string the rendering result
|
|
*/
|
|
public function renderFile($_file_, $_params_)
|
|
{
|
|
$_params_['handler'] = $this;
|
|
if ($this->exception instanceof ErrorException || !Yii::$app->has('view')) {
|
|
ob_start();
|
|
ob_implicit_flush(false);
|
|
extract($_params_, EXTR_OVERWRITE);
|
|
require Yii::getAlias($_file_);
|
|
|
|
return ob_get_clean();
|
|
}
|
|
|
|
$view = Yii::$app->getView();
|
|
$view->clear();
|
|
|
|
return $view->renderFile($_file_, $_params_, $this);
|
|
}
|
|
|
|
/**
|
|
* Renders the previous exception stack for a given Exception.
|
|
* @param \Exception $exception the exception whose precursors should be rendered.
|
|
* @return string HTML content of the rendered previous exceptions.
|
|
* Empty string if there are none.
|
|
*/
|
|
public function renderPreviousExceptions($exception)
|
|
{
|
|
if (($previous = $exception->getPrevious()) !== null) {
|
|
return $this->renderFile($this->previousExceptionView, ['exception' => $previous]);
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Renders a single call stack element.
|
|
* @param string|null $file name where call has happened.
|
|
* @param int|null $line number on which call has happened.
|
|
* @param string|null $class called class name.
|
|
* @param string|null $method called function/method name.
|
|
* @param array $args array of method arguments.
|
|
* @param int $index number of the call stack element.
|
|
* @return string HTML content of the rendered call stack element.
|
|
*/
|
|
public function renderCallStackItem($file, $line, $class, $method, $args, $index)
|
|
{
|
|
$lines = [];
|
|
$begin = $end = 0;
|
|
if ($file !== null && $line !== null) {
|
|
$line--; // adjust line number from one-based to zero-based
|
|
$lines = @file($file);
|
|
if ($line < 0 || $lines === false || ($lineCount = count($lines)) < $line) {
|
|
return '';
|
|
}
|
|
|
|
$half = (int) (($index === 1 ? $this->maxSourceLines : $this->maxTraceSourceLines) / 2);
|
|
$begin = $line - $half > 0 ? $line - $half : 0;
|
|
$end = $line + $half < $lineCount ? $line + $half : $lineCount - 1;
|
|
}
|
|
|
|
return $this->renderFile($this->callStackItemView, [
|
|
'file' => $file,
|
|
'line' => $line,
|
|
'class' => $class,
|
|
'method' => $method,
|
|
'index' => $index,
|
|
'lines' => $lines,
|
|
'begin' => $begin,
|
|
'end' => $end,
|
|
'args' => $args,
|
|
]);
|
|
}
|
|
|
|
/**
|
|
* Renders call stack.
|
|
* @param \Exception|\ParseError $exception exception to get call stack from
|
|
* @return string HTML content of the rendered call stack.
|
|
* @since 2.0.12
|
|
*/
|
|
public function renderCallStack($exception)
|
|
{
|
|
$out = '<ul>';
|
|
$out .= $this->renderCallStackItem($exception->getFile(), $exception->getLine(), null, null, [], 1);
|
|
for ($i = 0, $trace = $exception->getTrace(), $length = count($trace); $i < $length; ++$i) {
|
|
$file = !empty($trace[$i]['file']) ? $trace[$i]['file'] : null;
|
|
$line = !empty($trace[$i]['line']) ? $trace[$i]['line'] : null;
|
|
$class = !empty($trace[$i]['class']) ? $trace[$i]['class'] : null;
|
|
$function = null;
|
|
if (!empty($trace[$i]['function']) && $trace[$i]['function'] !== 'unknown') {
|
|
$function = $trace[$i]['function'];
|
|
}
|
|
$args = !empty($trace[$i]['args']) ? $trace[$i]['args'] : [];
|
|
$out .= $this->renderCallStackItem($file, $line, $class, $function, $args, $i + 2);
|
|
}
|
|
$out .= '</ul>';
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* Renders the global variables of the request.
|
|
* List of global variables is defined in [[displayVars]].
|
|
* @return string the rendering result
|
|
* @see displayVars
|
|
*/
|
|
public function renderRequest()
|
|
{
|
|
$request = '';
|
|
foreach ($this->displayVars as $name) {
|
|
if (!empty($GLOBALS[$name])) {
|
|
$request .= '$' . $name . ' = ' . VarDumper::export($GLOBALS[$name]) . ";\n\n";
|
|
}
|
|
}
|
|
|
|
return '<pre>' . $this->htmlEncode(rtrim($request, "\n")) . '</pre>';
|
|
}
|
|
|
|
/**
|
|
* Determines whether given name of the file belongs to the framework.
|
|
* @param string $file name to be checked.
|
|
* @return bool whether given name of the file belongs to the framework.
|
|
*/
|
|
public function isCoreFile($file)
|
|
{
|
|
return $file === null || strpos(realpath($file), YII2_PATH . DIRECTORY_SEPARATOR) === 0;
|
|
}
|
|
|
|
/**
|
|
* Creates HTML containing link to the page with the information on given HTTP status code.
|
|
* @param int $statusCode to be used to generate information link.
|
|
* @param string $statusDescription Description to display after the the status code.
|
|
* @return string generated HTML with HTTP status code information.
|
|
*/
|
|
public function createHttpStatusLink($statusCode, $statusDescription)
|
|
{
|
|
return '<a href="http://en.wikipedia.org/wiki/List_of_HTTP_status_codes#' . (int) $statusCode . '" target="_blank">HTTP ' . (int) $statusCode . ' – ' . $statusDescription . '</a>';
|
|
}
|
|
|
|
/**
|
|
* Creates string containing HTML link which refers to the home page of determined web-server software
|
|
* and its full name.
|
|
* @return string server software information hyperlink.
|
|
*/
|
|
public function createServerInformationLink()
|
|
{
|
|
$serverUrls = [
|
|
'http://httpd.apache.org/' => ['apache'],
|
|
'http://nginx.org/' => ['nginx'],
|
|
'http://lighttpd.net/' => ['lighttpd'],
|
|
'http://gwan.com/' => ['g-wan', 'gwan'],
|
|
'http://iis.net/' => ['iis', 'services'],
|
|
'https://secure.php.net/manual/en/features.commandline.webserver.php' => ['development'],
|
|
];
|
|
if (isset($_SERVER['SERVER_SOFTWARE'])) {
|
|
foreach ($serverUrls as $url => $keywords) {
|
|
foreach ($keywords as $keyword) {
|
|
if (stripos($_SERVER['SERVER_SOFTWARE'], $keyword) !== false) {
|
|
return '<a href="' . $url . '" target="_blank">' . $this->htmlEncode($_SERVER['SERVER_SOFTWARE']) . '</a>';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Creates string containing HTML link which refers to the page with the current version
|
|
* of the framework and version number text.
|
|
* @return string framework version information hyperlink.
|
|
*/
|
|
public function createFrameworkVersionLink()
|
|
{
|
|
return '<a href="http://github.com/yiisoft/yii2/" target="_blank">' . $this->htmlEncode(Yii::getVersion()) . '</a>';
|
|
}
|
|
|
|
/**
|
|
* Converts arguments array to its string representation.
|
|
*
|
|
* @param array $args arguments array to be converted
|
|
* @return string string representation of the arguments array
|
|
*/
|
|
public function argumentsToString($args)
|
|
{
|
|
$count = 0;
|
|
$isAssoc = $args !== array_values($args);
|
|
|
|
foreach ($args as $key => $value) {
|
|
$count++;
|
|
if ($count >= 5) {
|
|
if ($count > 5) {
|
|
unset($args[$key]);
|
|
} else {
|
|
$args[$key] = '...';
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (is_object($value)) {
|
|
$args[$key] = '<span class="title">' . $this->htmlEncode(get_class($value)) . '</span>';
|
|
} elseif (is_bool($value)) {
|
|
$args[$key] = '<span class="keyword">' . ($value ? 'true' : 'false') . '</span>';
|
|
} elseif (is_string($value)) {
|
|
$fullValue = $this->htmlEncode($value);
|
|
if (mb_strlen($value, 'UTF-8') > 32) {
|
|
$displayValue = $this->htmlEncode(mb_substr($value, 0, 32, 'UTF-8')) . '...';
|
|
$args[$key] = "<span class=\"string\" title=\"$fullValue\">'$displayValue'</span>";
|
|
} else {
|
|
$args[$key] = "<span class=\"string\">'$fullValue'</span>";
|
|
}
|
|
} elseif (is_array($value)) {
|
|
$args[$key] = '[' . $this->argumentsToString($value) . ']';
|
|
} elseif ($value === null) {
|
|
$args[$key] = '<span class="keyword">null</span>';
|
|
} elseif (is_resource($value)) {
|
|
$args[$key] = '<span class="keyword">resource</span>';
|
|
} else {
|
|
$args[$key] = '<span class="number">' . $value . '</span>';
|
|
}
|
|
|
|
if (is_string($key)) {
|
|
$args[$key] = '<span class="string">\'' . $this->htmlEncode($key) . "'</span> => $args[$key]";
|
|
} elseif ($isAssoc) {
|
|
$args[$key] = "<span class=\"number\">$key</span> => $args[$key]";
|
|
}
|
|
}
|
|
|
|
return implode(', ', $args);
|
|
}
|
|
|
|
/**
|
|
* Returns human-readable exception name.
|
|
* @param \Exception $exception
|
|
* @return string human-readable exception name or null if it cannot be determined
|
|
*/
|
|
public function getExceptionName($exception)
|
|
{
|
|
if ($exception instanceof \yii\base\Exception || $exception instanceof \yii\base\InvalidCallException || $exception instanceof \yii\base\InvalidParamException || $exception instanceof \yii\base\UnknownMethodException) {
|
|
return $exception->getName();
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* @return bool if simple HTML should be rendered
|
|
* @since 2.0.12
|
|
*/
|
|
protected function shouldRenderSimpleHtml()
|
|
{
|
|
return YII_ENV_TEST || Yii::$app->request->getIsAjax();
|
|
}
|
|
}
|